Non-heat-conducting receptacle.



U. G. WILSON.

NoN-HEAT CONDUGTlNG REGEPTAGL'E.

APPLICATION 'FILED AUG, 28, 1912.

ymfh 4 Patented 001;. 28, 1918,

2 S-HEETS--SHEBT l.

G. G. WILSON.

NoN-HBM GONDUGTING RBGEPTAGLB.

APPLICATION FILED AUG. 2B, 1912.

mme@ @en 28, 1913.

2 SHEETS-SHEET 2.

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@NTFU PATENT FFICE.

CLARENCE C. WILSON, 0F BRIDGEPORT, CONNECTICUT, ASSIGNO TO' THE WARNERBROTHERS COMPANY, 0F BRIDGEPQRT, CONNECTICUT, A. GQEPQRA'TIQN OFNECTICUT.

-non-HEAT-counccrme anonr'raonn.

invasor.

Specification of Letters Patent.

rammed oer. ce, 1913.

Application filed .August 28|, 1912. Serial No. 717,435.

The receptacles may be made of any suit-v able material, although Iprefer to make them of a suitable substantially non-heatconductingmaterial such as paper bex board.

The receptacles may be placed on the inarket either Wholly or partiallyin knock down forni or may be madeup ready for immediate use. F orconvenience in packing and shipping the lmocledown form is preferable.

The object of the invention is to provide a non-heait-conducting,receptacle suitable for use in connection with the transportation orpreservation of food stuffs, either solid or liquid and whether hot orcold, the inner poi-tiener container of the receptacle beingsubstantially insulated against either the diii'usion or absorption ofheat.

A further object of the invention is to provide a receptacle of theclass described which will be cheap and easy to inake as well aseiiicient in use.

In the following l have described, in connection with the accompanyingdrawings, several l'orins of structure illustrating` the application ofthe principles ot' my invention, the novel 'features thereof beingl moreparticularly7 pointed out hereinafter .in the claims.

In the drawings Figure l is a longitudinal sectional view of one form otreceptacle illustrating niy invention as applied to a cylindrical innercontainer of the kind particularly useful in connection with thetransportation or l'ireservation of liquid or semiliquid food stuil's;Fig. 2 is a vertical crosssectional view of the structure shown in Fig.l, valong the line 2-2, looking in the direction of the arrows; F ig. 3is a plan view oli one of theside spacers; Fig. L.t is a plan View ofone form of an end spacer in the flat;

F ig. 5 is an elevation of the structure shown in F 1g. 4L lnade up intoa cone shape; Fig. 6 1s a perspective view of one end oli the outercontainer showingr the locking means; Fig. 7 is a longitudinal sectionalview of another form of receptacle illustrating my 'invention i asapplied to an inner container rectangular 1n erosseseetion; F ig. 8 is avertical dross sectional View of the structure shown in Fig. 7, alongthe line 8 8, looking in the direcn ti-on of the arrows; F ig. 9 is aplan view of a form of side spacer' adapted for use in con* nection withan inner container rectangular 1n cross-section; F ig.'l0 is aperspective view of a form of end spacer .adapted for use in connectionwith any forni of inner con.

tainer; Fig. 11 is an elevation of a portion of the end spacer shown inFig. l0; Fig. l2 is a plan view of a forni ot end spacer, in the tlat,especially adapted for use in connec tien with inner containersrectangular in cross-section and Fig. 13 is an elevation oi thestructure shown in F ig. ln'iade up into pyramidal shape.

Similar letters of reference indicate -similar parts throughout theseveral views.

a indicates an inner container cylindrical in shape and made of anysuitable material :auch as glass, wood, paper box board, or the like. Asthis forni ot' receptacle is especiallf/ adaptable for use in connectionwith liquid or semi-liquid food stutl's, if it is made of a materialnormally permeable to liquids, l prefer to treat the saine so as torender it impervious .to liquid.

'b indicates an outer container, preterabl,r rectangular incross-section, made of any suiiable material such as paper box beard,strawboard, metal, f ilass, basiret-weaving, etc. For its largest useboth the inner and outer containers, as well as the other parts of thereceptacle, may be niade `ot paper box board and, where the constructionor 'torni permits, in knock-domi forni. The ends of the outer containerZ; may be interloeked as shown `in Fig. G, where c, c indicate the innerinterlocking flaps and it, d indicate theY outer interlockingr ilaps..ln this forni ot cmistrui-.tion of the ends of the outer container, noreasonable pressure from within the receptacle can spring or torce openthe ends when once interlockcd.

The ends o'l the inner container o are preferably recessed as shown inFig. l, where c indicates the recessed bottoni and f titl indicates arecessed cover fitting over the edges of the container.

wall of the innercontainer a. AThe spacers g, one, two or morev 1nnumberas may be i desirable, are slipped over the inner container andare held substantially at right angles thereto, preferably by friction.The end spacers t' for a cylindrical inner container are preferably coneshaped so as to provide but a single point 'of contact where the sametouches the inner walls ot the ends of the outer container. The endspacers may be made ofa'circular piece j of suitable material having aradial slit lo so that one portion may be 'slid under the other to forma cone as shown in Fig.. 5. When the end spacers t' are placed in therecesses at the ends of the inner container, slight pressure at thepoint of the cone will cause them to spread and fictionally engage thewalls of the recesses. When the side spacers g and end spacers t' are inposition, the inner container a may be slid into the outer container b,the side spacers frictionally engaging the inner face of the outercontainer and the points of the cones of end s acers contacting with theinner walls of t e ends of the outer container as shown in Fig. 1. Bythe means described it is obvious that an air space or chamber is formedbetween the inner and outer containers with minimal points of contactbetween them.

The structure shown in Fig.V 7 diders from that shown in Fig. 1 in thatthe inner container a is rectangular instead of cylindrical. The outercontainer b is the same in both cases. In the structure shown in Fig. 7the end spacers Z are preferably pyramidal in shape, the base of thepyramid resting against the inner ends of the outer container and theapex against the end of the innerk container, thus forming but a singlepoint of contact. This form ot end spacer may be cut in the form shownin Fig. 12

and of a size to' titlthe ends of the outer container. It is then foldedor bent into pyramidal form as shown in Figfl.

End spacers such as shown in Figs. 10 and 11 may be used in place of endspacers of the form shown in Figs. 4 and -5 and Figs. 12 and 13. The endspacers shown in Figs. 10 and 11 comprise two strips ot' material m,`motany suitable kind, mortised together as shown. Such end spacers may besubstituted for the other forms at either or both ends of thereceptacle. I

The end spacers of the forms shown in Figs'. 1 and 7, are' characterizedas to shape in being tapering, whilethose of the con- Lovera;

struction shown in Figs. 10 and 11 areiiat;A

but in all cases| these spacers leave large air spaces between the endwalls of the outer container and the adjacent ends of the i'nnercontainer. The end spacers and intermediate spacers g support the innercontainer free of direct contact with the outer container and with airspaces wholly surrounding the inner container.

All of the 'various forms of end spacers herein explained are of hollowform, as distinguished from solid, so as to present linear Contact onlywith at least one of the containers and avoid extended surface con tacttherewith, and they also serve 'to form air chambers between the innerand outer containers, so that in conjunction with the intermediatespacers the inner container is in etfect suspended in air within theouter container.

In an actual test of a receptacle of the type shown in Fig. 1,' Waterhaving a tem perature of 50 F. suffered no appreciable gain intemperature after a lapse of two hours.

It is obvious that the material, the shape and dimensions of the parts,the form of the end and side spacers and the shape and construction ofthe containers are immaterial and I do not restrict myself to thedetails as shown and describedv further than the scope of the appendedclaims demand.

What I claim and desire to secure by Letters Patent is:

1. A non-heat-conducting receptacle, comprising an outer container, aninner container, a spacer frictionally engaging the inner containerintermediate the ends thereof and resting against the inner walls of theouter container, and end spacers of hollow form arranged between theends of the inner Vand outer containers and engaging restricted areas ofboth less than the opposed areas of such containers and forming airchambers between the containers, said inner container being in effectsuspended Aby the spacers within the outer container.

2. In a non-heat-conducting receptacle including an outer and an innercontainer, a spacer between the ends of the containers shaped to providea linear contact with the end ot' one container and a pointcontact withthe end of the other container.

3. A non-heat-conducting receptacle, com-y prising an outer container,an`inner container having recessed ends', expansible spacers of taperform sprung into place in the recessed ends of the inner container andadapted to contact with the end walls of the outer container, andtransversely arranged spacers for supporting the inner container betweenthe longitudinal walls of the outer container.

4. A non-heatconducting receptacle, comprising an outer container, aninner consof revenez;

miner, transversely arranged spacers engnging Idie longitudinal walls elthe outer container und supporting the inner Conminer within The entercontainer and out of centact Willi its Walle and Wit-h en intermediatesurroundingv nir space, and tapering end Spzieerel in extendedsuperficial eontfie', with the inner container and having only pointContact with the enel Walls of the. outer container.

5. A non-heirl-eendliciing receptacle coinprising an oule'i" rectangularcontainer @if peper be); biird, :i cylindrical inner container el' paperbex board substantially inipervious te moisture, n epiieer of peper boxboard frictionally engaging Adie inner c0nteiner and the inner Wall ofL@he outer 00n- 'l'aner and cene shaped. end Spacers of paper box boardbetween the ends of the inner and outer containers, the point olf thecone being adapted to Contact with the inner Wall ofthe ends of theenter container.

G. A nonl1eat-eondncting receptacle coml tween the ends of the inner:nifl outer eonminers, the point of *alle end spacer being adapted toContact with the end` oi one of the eonininers.

ln testimony whereof l have signed this Specification in the presence oftwo subscribing Witnesses.

CLARENCE C. VVLN.

Witnesses L T. VVARNLER, ROBERT l-l. Gianni.

